Henriëtte Amalia Maria von Anhalt-Dessau (Kleve, 16 August 1666 – Dietz an der Lahn, 18 April 1726) was a Princess consort of Nassau-Dietz.

She married her cousin Henry Casimir II, Prince of Nassau-Dietz, in 1683, at the age of 17.

When Henry Casimir died in 1696, she became regent for their son, John William Friso, who succeeded to his father's titles.

Henriëtte Amalia von Anhalt-Dessau died in 1726 at the age of 59; she was buried in Dietz.

Hendrik Casimir II and Henriëtte Amalia had nine children: